Convolves single or multiple waveforms and one or more kernels with state, allowing subsequent calls to be processed in a continuous manner. If you are convolving multiple waveforms, the VI maintains separate convolution states for each waveform.


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Inputs/Outputs

  • cbool.png reset —

    reset forces the internal history buffer to be reset to zero when it is TRUE.

  • cmsdt.png signal in —

    signal in is the signal to be convolved with kernel.

  • c1ddbl.png kernel —

    kernel is the sequence by which signal in is convolved.

  • cenum.png algorithm —

    algorithm specifies the method used for computing the convolution. When algorithm is set to direct, the VI computes convolution using the direct form of linear convolution: x*y[i] = Sum(x[k]y[i-k]) When algorithm is set to frequency domain (default), the VI computes convolution using an FFT-based technique.

    0
    direct
    1
    frequency domain
  • cerrcodeclst.png error in (no error) —

    error in describes error conditions that occur before this node runs. This input provides standard error in functionality.

  • cbool.png delay output with half kernel length —

    delay output with half kernel length causes signal out to be delayed in time by half the length of the kernel when TRUE. Half kernel length is computed by 0.5*N*dt where N is the number of elements in kernel, and dt is from signal in.

  • imsdt.png signal out —

    signal out is the result of the convolution of the of signal in and kernel.

  • ierrcodeclst.png error out —

    error out contains error information. This output provides standard error out functionality.